Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25258
Title: Novel structural co-expression analysis linking the NPM1-associated ribosomal biogenesis network to chronic myelogenous leukemia
Authors: Chan, LWC 
Lin, X
Yung, G
Lui, T
Chiu, YM
Wang, F
Tsui, NBY
Cho, WCS
Yip, SP 
Siu, PM 
Wong, SCC 
Yung, BYM 
Issue Date: 2015
Publisher: Nature Publishing Group
Source: Scientific reports, 2015, v. 5, 10973 How to cite?
Journal: Scientific Reports 
Abstract: Co-expression analysis reveals useful dysregulation patterns of gene cooperativeness for understanding cancer biology and identifying new targets for treatment. We developed a structural strategy to identify co-expressed gene networks that are important for chronic myelogenous leukemia (CML). This strategy compared the distributions of expressional correlations between CML and normal states, and it identified a data-driven threshold to classify strongly co-expressed networks that had the best coherence with CML. Using this strategy, we found a transcriptome-wide reduction of co-expression connectivity in CML, reflecting potentially loosened molecular regulation. Conversely, when we focused on nucleophosmin 1 (NPM1) associated networks, NPM1 established more co-expression linkages with BCR-ABL pathways and ribosomal protein networks in CML than normal. This finding implicates a new role of NPM1 in conveying tumorigenic signals from the BCR-ABL oncoprotein to ribosome biogenesis, affecting cellular growth. Transcription factors may be regulators of the differential co-expression patterns between CML and normal.
URI: http://hdl.handle.net/10397/25258
ISSN: 2045-2322
DOI: 10.1038/srep10973
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